Abstract: A restriction sensor system for identifying the existence of blockages in exhaust conduits of clothes dryers. The restriction sensor system may include a pressure sensing device having a body configured to be coupled to an exhaust conduit of a clothes dryer. The pressure sensing device may be capable of determining changes in air pressure in the exhaust conduit. Once the air pressure present in the exhaust conduit exceeds a threshold air pressure, the pressure sensing device may send a signal to an indicator to generate an alarm, which may be a visual alarm or audible alarm, or both.

Abstract: A restriction sensor system for identifying the existence of blockages in exhaust conduits of clothes dryers. The restriction sensor system may include a pressure sensing device having a body configured to be coupled to an exhaust conduit of a clothes dryer. The pressure sensing device may be capable of determining changes in air pressure in the exhaust conduit. Once the air pressure present in the exhaust conduit exceeds a threshold air pressure, the pressure sensing device may send a signal to an indicator to generate an alarm, which may be a visual alarm or audible alarm, or both.

Abstract: A wall outlet box for a dryer exhaust conduit. The box includes a plurality of substantially planar integral walls defining an enclosure open at the front thereof. The enclosure includes a back surface, a pair of opposing side surfaces, a top surface, and a bottom surface. The opposing side surfaces, back surface and top surface include forward facing edges collectively defining a front periphery. The front periphery preferably has a perimeter greater than the perimeter of the back surface. The bottom surface preferably extends downwardly from the back surface to the front periphery. The wall outlet box further includes at least one port in the enclosure adapted to engage with a dryer exhaust conduit. A mounting lip, which can include mounting structures, extends outwardly from the forward facing edges. The mounting lip can be configured in an L-shape to provide a shoulder which abuts the edges of a wall surface.